Depending on the version of Windows, there is the option to locally block the netbios ports from outside connection, or over specific interfaces. Windows 2000 and XP both support this option in the network configuration settings.

> Hi list,
> I have a request from one of our clients to block NetBios in thier Network
> ( No one should be able to see the shared resources of others)
> I have googled around and all what I have found is blocking it on the edge
> communication equipment ( router, xDSL modemd..etc) Which will be done.
> The most important thing is to disable it internally ( inside the LAN)
> Any suggestions???
> Taking in consideration that there is DHCP server for the clients ( If it
> can contribute in the Solution)
> Best Regards,
> Kareem Mahgoub
>
>
> ---------------------------------------------------------------------------
> Ethical Hacking at the InfoSec Institute. Mention this ad and get $545 off
> any course! All of our class sizes are guaranteed to be 10 students or less
> to facilitate one-on-one interaction with one of our expert instructors.
> Attend a course taught by an expert instructor with years of in-the-field
> pen testing experience in our state of the art hacking lab. Master the skills
> of an Ethical Hacker to better assess the security of your organization.
> Visit us at:
> http://www.infosecinstitute.com/courses/ethical_hacking_training.html> ----------------------------------------------------------------------------
>

---------------------------------------------------------------------------
Ethical Hacking at the InfoSec Institute. Mention this ad and get $545 off
any course! All of our class sizes are guaranteed to be 10 students or less
to facilitate one-on-one interaction with one of our expert instructors.
Attend a course taught by an expert instructor with years of in-the-field
pen testing experience in our state of the art hacking lab. Master the skills
of an Ethical Hacker to better assess the security of your organization.
Visit us at:
http://www.infosecinstitute.com/courses/ethical_hacking_training.html
----------------------------------------------------------------------------